Tool bit



FIG. 1 is a top perspective view of a tool bit showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevated view thereof;

FIG. 4 is a rear elevated view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right elevated view thereof; and,

FIG. 8 is a left elevated view thereof.

The broken lines depict a portion of the tool bit in which the design is embodied that is not considered part of the claimed design. 

CLAIM The ornamental design for tool bit, as shown and described. 